28231700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1301}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 72328704

約数和(自身を除く): 44097004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1301, 1550, 2170, 2602, 3100, 4340, 5204, 5425, 6505, 9107, 10850, 13010, 18214, 21700, 26020, 32525, 36428, 40331, 45535, 65050, 80662, 91070, 130100, 161324, 182140, 201655, 227675, 282317, 403310, 455350, 564634, 806620, 910700, 1008275, 1129268, 1411585, 2016550, 2823170, 4033100, 5646340, 7057925, 14115850, 28231700]

約数ペア:

[(1, 28231700), (2, 14115850), (4, 7057925), (5, 5646340), (7, 4033100), (10, 2823170), (14, 2016550), (20, 1411585), (25, 1129268), (28, 1008275), (31, 910700), (35, 806620), (50, 564634), (62, 455350), (70, 403310), (100, 282317), (124, 227675), (140, 201655), (155, 182140), (175, 161324), (217, 130100), (310, 91070), (350, 80662), (434, 65050), (620, 45535), (700, 40331), (775, 36428), (868, 32525), (1085, 26020), (1301, 21700), (1550, 18214), (2170, 13010), (2602, 10850), (3100, 9107), (4340, 6505), (5204, 5425)]